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Characteristics and chemical composition of 30CrMnSiNi2A steel

Posted:2021-06-11 16:48:39

Characteristics of 30CrMnSiNi2A steel:
After heat treatment, high strength, good plasticity and toughness, good fatigue performance and fracture toughness, and low fatigue crack growth rate can be obtained. 30CrMnSiNi2A steel has high hardenability, good machinability and weldability, but it is more sensitive to notches and hydrogen embrittlement.

30CrMnSiNi2A steel chemical composition:
Note: The actual chemical composition is subject to the MTC.
30CrMnSiNi2A Carbon C: 0.27 - 0.34
30CrMnSiNi2A silicon Si: 0.90 - 1.20
30CrMnSiNi2A manganese Mn: 1.00 - 1.30
30CrMnSiNi2A sulfur S: ≤0.020
30CrMnSiNi2A Phosphorus P: ≤0.020
30CrMnSiNi2A Nickel Ni: 1.40 - 1.80
30CrMnSiNi2A Chromium Cr: 0.90 - 1.20
30CrMnSiNi2A Copper Cu: ≤0.250